Dialysis system including supplemental power source

• US 8,206,578 B2
• Filed: 09/01/2011
• Issued: 06/26/2012
• Est. Priority Date: 02/14/2008
• Status: Active Grant

• Current Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Original Assignee: Baxter Healthcare SA (Baxter International Inc.), Baxter International Inc.
• Inventors: Rohde, Justin, Han, William W.
• Primary Examiner(s): Kim, John
• Application Number:
  US13/223,983
• Publication Number:
  US 20110315614A1
• Time in Patent Office: 299 Days
• Field of Search: 210/134, 210/138, 210/141, 210/142, 210/143, 210/149, 210/175, 210/177, 210/252, 210/257.1, 210/321.71, 604/4.01, 604/6.13
• US Class Current: 210/134
• CPC Class Codes: A61M 1/16 with membranes
• CPC Class Codes: A61M 1/1601 Control or regulation
• CPC Class Codes: A61M 1/1656 Apparatus for preparing dialysates
• CPC Class Codes: A61M 1/166 Heating for sterilisation A61M1/1686
• CPC Class Codes: A61M 2205/50 with microprocessors or computers
• CPC Class Codes: A61M 2205/82 Internal energy supply devices

Abstract

A dialysis system includes: a water purification unit; a dialysate generation unit configured to use water purified by the water purification unit; a dialysate delivery unit configured to deliver dialysate prepared by the dialysate generation unit; a supplemental power source; and electronic circuitry including: (i) a first electrical connection configured to electrically connect a branch power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit, and (ii) a second electrical connection configured to electrically connect a supplemental power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit.

Claims

1. A dialysis system comprising:

a water purification unit;

a dialysate generation unit configured to use water purified by the water purification unit;

a dialysate delivery unit configured to deliver dialysate prepared by the dialysate generation unit;

a supplemental power source; and

electrical circuitry configured such that a branch power source and the supplemental power source share a power load required by the water purification unit, the dialysate generation unit and the dialysate delivery unit.

2. The dialysis system of claim 1, wherein the electrical circuitry includes (i) a first electrical connection configured to electrically connect the branch power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit, and (ii) a second electrical connection configured to electrically connect the supplemental power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit.

3. The dialysis system of claim 2, wherein the electrical circuitry includes a third electrical connection configured to electrically connect the branch power source to the supplemental power source to allow the branch power source to charge the supplemental power source.

4. The dialysis system of claim 2, which includes (i) a first switch located in the first electrical connection to electrically connect the branch power source with the water purification unit, the dialysate generation unit and the dialysate delivery unit, and (ii) a second switch located in the second electrical connection to electrically connect the supplemental power source with at least one of the water purification unit, the dialysate generation unit and the dialysate delivery unit.

5. The dialysis system of claim 4, which includes a third switch located in a third electrical connection that electrically connects the branch power source with the supplemental power source.

6. The dialysis system of claim 1, wherein during low power, the supplemental power source is configured to be the only power source to power the water purification unit, the dialysate generation unit and the dialysate delivery unit.

7. The dialysis system of claim 1, wherein the electrical circuitry includes first and second electrical connections electrically connecting the branch power source with the water purification unit, the dialysate generation unit and the dialysate delivery unit.

8. The dialysis system of claim 1, wherein the electrical circuitry includes first and second electrical connections electrically connecting the supplemental power source with the water purification unit.

9. The dialysis system of claim 1, wherein the electrical circuitry includes first and second electrical connections electrically connecting the branch power source with the dialysate delivery unit.

10. The dialysis system of claim 1, wherein the electrical circuitry includes first and second electrical connections electrically connecting the supplemental power source with the water purification unit and the dialysate preparation unit.

11. The dialysis system of claim 1, wherein the supplemental power source is configured to be the only power source to power the dialysate delivery unit.

12. The dialysis system of claim 1, which includes a logic implementer programmed to selectively allow (i) the branch power source to charge the supplemental power source;

and (ii) the branch power source and the supplemental power source to share the power load required by the water purification unit, the dialysate generation unit and the dialysate delivery unit.

13. The dialysis system of claim 1, wherein the branch power source is configured to power one or more of the water purification unit, the dialysate generation unit and the dialysate delivery unit, and the supplemental power source is configured to power the remainder of the water purification unit, the dialysate generation unit and the dialysate delivery unit.